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CVE Record

CVE-2020-7320: Protection Mechanism Failure in ENS for Windows

Protection Mechanism Failure vulnerability in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 September 2020 Update allows local administrator to temporarily reduce the detection capability allowing otherwise detected malware to run via stopping certain Microsoft services.

MediumCVSS 6.7Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This issue weakens McAfee Endpoint Security for Windows when an attacker already has local administrator access. They could temporarily reduce detection so malware that would normally be detected may run. It is not a remote entry point, but it matters on systems where admin accounts may be compromised.

Executive priority

Treat this as a moderate endpoint hardening issue. It is most urgent where local admin compromise is plausible, because it can help malware evade detection after access is gained.

Technical view

CVE-2020-7320 is a CWE-693 protection mechanism failure in McAfee Endpoint Security for Windows before the 10.7.0 September 2020 Update. The CVSS 3.1 score is 6.7, with local attack vector, high complexity, and high privileges required. The reported impact is reduced detection capability through stopping certain Microsoft services.

Likely exposure

Exposure is most likely on Windows endpoints running McAfee Endpoint Security 10.7.x before the September 2020 update. The attacker must already hold local administrator privileges, so risk concentrates on compromised workstations, shared admin accounts, or weak privilege management.

Exploitation context

The source bundle does not show CISA KEV listing or cited active exploitation. Available evidence describes a post-compromise local technique that can weaken endpoint detection, not an initial-access vulnerability.

Researcher notes

Evidence is limited to CVE records and McAfee advisory metadata. Do not assume remote exploitation, unauthenticated access, named affected services, or active exploitation from the supplied sources. The main validation path is version and update-level confirmation.

Mitigation direction

  • Apply McAfee ENS for Windows 10.7.0 September 2020 Update or later.
  • Review McAfee advisory SB10327 for exact vendor remediation guidance.
  • Reduce and monitor local administrator privileges on Windows endpoints.
  • Alert on unexpected security service stop events or protection state changes.
  • Prioritize high-risk endpoints used by administrators or exposed to untrusted software.

Validation and detection

  • Inventory McAfee Endpoint Security for Windows versions and update levels.
  • Confirm affected systems are not earlier than the September 2020 update.
  • Check endpoint logs for protection-disable or service-stop events.
  • Validate local administrator membership against approved access lists.
  • Review EDR coverage for alerts when protection capability changes.
Prepared
Confidence
high
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-693: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2020-7320 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.7 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:H/A:L

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.7CVSS 3.1MediumCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:H/A:L0.85.3Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.7Medium
CVSS 3.1 vector shape for CVE-2020-7320Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:H/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
McAfee LLCEndpoint Security for Windows10.7.xListed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-693 · source CWE mapping

Protection Mechanism Failure

Protection Mechanism Failure represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.